Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Grant and collaboration revenue	$ 79,708	$ 440,602	$ 190,125	$ 1,156,579
Operating expenses:
Research and development	832,835	461,421	1,435,618	1,270,357
General and administrative	733,499	427,292	1,805,209	929,637
Total operating expenses	1,566,334	888,713	3,240,827	2,199,994
Loss from operations	(1,486,626)	(448,111)	(3,050,702)	(1,043,415)
Other income (expense):
Interest income	1,068	60	3,121	812
Interest expense	(531)	(7,153)	(1,286)	(8,295)
Gain on debt extinguishment	172,056	0	172,056	0
Total other income (expense)	172,593	(7,093)	173,891	(7,483)
Net loss	$ (1,314,033)	$ (455,204)	$ (2,876,811)	$ (1,050,898)
Basic and diluted:
Net loss per common share (in dollars per share)	$ (0.21)	$ (0.66)	$ (0.49)	$ (2.27)
Weighted average shares outstanding (in shares)	6,322,799	691,155	5,830,165	462,775